Loading data into table using dbload

i need to truncate and load data into informix table .. is there a way by which i can used dbload to do it i am using a shell script to load the data .. but it always appends into the table...also i am trying to do a upshift of character data while loading itself .. but that throws error ... as syntax mismatch while using the utility.. my control file is as below

"control.file" 3 lines, 83 characters
FILE "file.unl" DELIMITER '|' 3;
INSERT INTO TAB1(name,age,salary)
VALUES (UPPER(f01),f02,f03);
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try and use truncate.

lishaAuthor Commented:
yeah but how to incorporate the truncate into dbload control file ?
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